"Start teaching new tricks to the old ones" on the web usually means shipping a bunch of extra JavaScript. Which is fine when a new pattern or paradigm is being

"Start teaching new tricks to the old ones" on the web usually means shipping a bunch of extra JavaScript. Which is fine when a new pattern or paradigm is being felt out, but once everybody is using this one library to do this thing the exact same way, you reach a point where it makes more sense to enshrine it in a native API. See jQuery (both Ajax and selection), Moment/Temporal, etc